Heat pipe with guided internal grooves and heat dissipation module incorporating the same

A heat dissipation module adapted to be positionable in physical engagement with a heat source device, comprising:

• a heat conduction case;
• a fin assembly;
• and
• a heat pipe comprising a heat receiving section, a heat transfer section, and a heat dissipation section coupled to the heat receiving section through the heat transfer section, the heat receiving section and the heat dissipation section being in physical engagement with the heat conduction case and the fin assembly respectively, the heat transfer section is disposed between the heat receiving section and the heat dissipation section, a groove structure formed in the heat pipe and extending from the heat receiving section to the heat dissipation section, the groove structure being provided with at least an axially-extending parallel portion and a non-axially-extending parallel portion;
• wherein the axially-extending parallel portion comprises a plurality of first groove segments extending parallel in an axial direction of the heat pipe and the non-axially-extending parallel portion comprises a plurality of second groove segments extending from the first groove segments in a parallel manner in a direction different from the axial direction of the heat pipe, forming continuous grooves extending from one end to another end of the heat pipe, where the entire heat pipe is devoid from any intersecting groove segments, whereby the non axial-extending parallel position is subject to substantially uniform heating from the heat receiving section for increased heat transfer between the ends of the heat pipe.